list1 = [1, 2, 3, 4, 5]
list2 = [3, 4, 5, 6, 7]

print(list(zip(list1, list2)))


def generatorFunc(x):
    for i in range(x):
        yield i


if __name__ == '__main__':
    r = generatorFunc(3)
    print(r.__next__())
    print(r.__next__())
from functools import  reduce
strs=['Hello','China','I am come']
import operator
r="".join(strs)
d=reduce(operator.add,strs,"");
print(d)
import time



print(r)
